Imbalance tariffs

Elia relies on the ARPs (Access Responsible Party) to maintain balance in its control area. Specifically, each ARP is individually responsible for the quarter-hourly balance of offtakes and injections in its portfolio or balancing perimeter.  

Principles

Using metering and nomination data Elia checks, every quarter of an hour, that the access responsible parties (ARPs) are maintaining their balance. If an imbalance is found in the balance perimeter of an ARP between total physical injections, import and purchases on the one hand and total off-takes, export and sales on the other, imbalance tariffs are applied: "Tariff for maintaining and restoring the individual balance of access responsible parties". These tariffs are calculated based on the applicable balancing mechanism.

The tariffs in application as from 1 January 2016 are fixed by decision of the CREG, dated 4 December 2015. (PDF)

If an ARP's nominations are not balanced, an ‘external inconsistency’ occurs. If the external inconsistency is accepted by Elia, the imbalance tariff also applies, in accordance with the ARP contract.

Present imbalance price and imbalance price history

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Loss percentage

With regard to offtakes measured at the access points and distribution offtake positions (if it is a net offtake), a loss percentage is added to the balancing perimeter in accordance with articles 161 and 162 of the Technical Regulations for Transmission.

The percentage currently amounts to:  

  • as from 1 January 2017:
    • Peak hours (weekdays from 8am till 8pm): 1,35%
    • Long off peak hours (weekdays from 8pm till 8am and week-ends): 1,25%
  • as from 1 January 2016:
    • Peak hours (weekdays from 8am till 8pm): 1,35%
    • Long off peak hours (weekdays from 8pm till 8am and week-ends): 1,25%
  • as from 1 January 2015:
    • Peak hours: 1,50%
    • Off peak hours: 1,25%
    • Week-end: 1,25%
    More information about the increase of these coefficients is available in the technical note by following this link.
  • as from 1 January 2014:
    • Peak hours: 1,20%
    • Off peak hours: 1,00%
    • Week-end: 1,05%
  • as from 1 January 2013:
    • Peak hours: 1,05%
    • Off peak hours: 1,00%
    • Week-end: 1,00%
  • as from 1 January 2012:
    • Peak hours: 1,20%
    • Off peak hours: 1,00%
    • Week-end: 1,05%

For your information:

For 2017, the weighted average loss percentage for distribution customers is 1.3010% (based on 2014 and 2015). 

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Previous tariffs

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